No. 3 U.S. carrier said offer is available for new and existing family-plan subscribers

T-Mobile US Inc. said Wednesday it will offer family-plan subscribers free access to Netflix Inc.’s streaming-video service, the carrier’s latest bid to lure wireless customers away from its larger rivals.

The offer is available to new and existing subscribers on T-Mobile plans with at least two lines, which cost $120 a month. Netflix’s standard plans, which allow customers to stream video to two screens, start at $10 a month.